When to go · Grosse Isle
Grosse Isle in September
Great month. Inside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.
Key facts
- Verdict
- Great
- Temperature
- 18°C (64°F)64°F (18°C) / 8°C (46°F)46°F (8°C)
- average high / low
- Rain days
- 12
- Crowds
- Medium
- Canada overall
- Prices
- Medium
- Canada overall
Verdict
Inside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.
Is another month better than September?
No other month rates higher than September for Grosse Isle in this guide.
Weather in September
- Grosse IsleHighs around 18 °C (64 °F), lows around 8 °C (46 °F), rain on about 12 daysHighs around 64 °F (18 °C), lows around 46 °F (8 °C), rain on about 12 days
Crowds and prices
- Crowds · Canada overall
- Medium
- Prices · Canada overall
- Medium
Canada overall: After Labour Day crowds drop; larches turn gold in the Rockies late in the month.
Compare two months
Weather, crowds and prices for any two months in Grosse Isle, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 18 °C (64 °F)64 °F (18 °C)
May: 17 °C (63 °F)63 °F (17 °C)
Night low
Sep: 8 °C (46 °F)46 °F (8 °C)
May: 6 °C (43 °F)43 °F (6 °C)
Rain days
Sep: 12
May: 12
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 0
May: 0
September: Inside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.
May: Inside Grosse Isle's best window: Late May–early Oct (boat season); Sep–Oct for geese and bird migration.
Grosse Isle: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast